Hey TechSpot, For the last few days, a few Microsoft programs on my computer have caused functions to shut down. Whenever Windows Live Messenger is open I cannot right click in any program. If Windows Media Player is open I can't open any other programs, and I can't access Explorer or any folders on my computer. If Internet Explorer is open, sometimes, just like Messenger, I lose the ability to right click. (This is happening now) Furthermore if I have any more then about six tabs open in Internet Explorer, It won't let me open any more, and just like the other problem I can't run any programs or open any folders. To my knowledge there have been no hardware or software changes that could have caused this. Short of reinstalling Vista, any suggestions?